Content .. 275 276 277 278 ..

Acura CSX. Manual - part 277

−

＊０１

ＳＮＲ９ＡＡ１Ｋ７７１０００９０９８６ＦＡＡＴ００

−

DTC P0986:

YES

14-189

PCM CONNECTORS

B (44P)

C (44P)

LG1 (BRN/YEL)

SHE (YEL)

Open in Shift Solenoid Valve E

Circuit

NOTE:

• Before you troubleshoot, record all freeze data and

any on-board snapshot with the HDS, and review
General Troubleshooting Information (see page 14-3).

• This code is caused by an electrical circuit problem

and cannot be caused by a mechanical problem in the
transmission.

1. Turn the ignition switch to ON (II).

2. Clear the DTC with the HDS.

3. Start the engine with the shift lever in N, and wait

for at least 1 second.

4. Check for Temporary DTCs or DTCs with the HDS.

Go to step 8.

Go to step 5.

5. Select Shift Solenoid Valve E in the Miscellaneous

Test Menu, and test shift solenoid valve E with the
HDS.

Go to step 6.

Go to step 8.

6. Start the engine with the shift lever in N, and wait

for at least 1 second.

7. Monitor the OBD STATUS for P0986 in the DTCs

MENU with the HDS.

Go to step 8.

If the HDS indicates PASSED, intermittent

failure, the system is OK at this time. Check for
poor connections or loose terminals between shift
solenoid valve E and the PCM. If the HDS indicates
NOT COMPLETED, go to step 5.

8. Turn the ignition switch to LOCK (0).

9. Jump the SCS line with the HDS.

10. Disconnect PCM connectors B (44P) and C (44P).

11. Measure the resistance between PCM connector

terminals B24 and C40.

Go to step 22.

Go to step 12.

Terminal side of female terminals

Is DT C P0986 indicated?

Is a clicking sound hear d?

Does the HDS indicate F AILED?

Is ther e 12

08/08/21 14:45:28 61SNR030_140_0191

＊０２

＊０３

−

YES

14-190

Automatic Transmission

PCM CONNECTOR B (44P)

SHE (YEL)

SHIFT SOLENOID WIRE
HARNESS CONNECTOR

SHIFT SOLENOID
VALVE E
CONNECTOR

SHE (RED)

12. Disconnect the shift solenoid wire harness

connector.

13. Check for continuity between PCM connector

terminal B24 and shift solenoid wire harness
connector terminal No. 3.

Go to step 14.

Repair open in the wire between PCM

connector terminal B24 and the shift solenoid wire
harness connector, then go to step 16.

14. Remove the shift solenoid wire harness (see page

14-217).

15. Check for continuity between shift solenoid wire

harness connector terminal No. 3 and the shift
solenoid valve E connector terminal.

Replace shift solenoid valve E (see page

14-217), then go to step 19.

Replace the shift solenoid wire harness

(see page 14-217), then go to step 19.

Wire side of
female terminals

Terminal side of
female terminals

Wire side of
female terminals

Terminal side of
male terminals

Is ther e continuity?

08/08/21 14:45:28 61SNR030_140_0192

−

YES

14-191

16. Reconnect all connectors.

17. Turn the ignition switch to ON (II).

18. Clear the DTC with the HDS.

19. Start the engine with the shift lever in P, and wait

for at least 1 second. Then shift to N, and wait for at
least 1 second.

20. Check for Temporary DTCs or DTCs with the HDS.

Check for poor connections or loose

terminals between shift solenoid valve E and the
PCM, then go to step 1.

Go to step 21.

21. Monitor the OBD STATUS for P0986 in the DTCs

MENU with the HDS.

Troubleshooting is complete. If any other

Temporary DTCs or DTCs were indicated in step 20,
go to the indicated DTC’s troubleshooting.

If the HDS indicates FAILED, check for poor

connections or loose terminals between shift
solenoid valve E and the PCM, then go to step 1. If
the HDS indicates NOT COMPLETED, go to step 19.

22. Reconnect all connectors.

23. Update the PCM if it does not have the latest

software (see page 11-227), or substitute a known-
good PCM (see page 11-7).

24. Start the engine with the shift lever in P, and wait

for at least 1 second. Then shift to N, and wait for at
least 1 second.

25. Check for Temporary DTCs or DTCs with the HDS.

Check for poor connections or loose

terminals between shift solenoid valve E and the
PCM. If the PCM was updated, substitute a known-
good PCM (see page 11-7), then go to step 24. If the
PCM was substituted, go to step 1.

Go to step 26.

26. Monitor the OBD STATUS for P0986 in the DTCs

MENU with the HDS.

If the PCM was updated, troubleshooting is

complete. If the PCM was substituted, replace the
original PCM (see page 11-228). If any other
Temporary DTCs or DTCs were indicated in step 25,
go to the indicated DTC’s troubleshooting.

If the HDS indicates FAILED, check for poor

connections or loose terminals between shift
solenoid valve E and the PCM. If the PCM was
updated, substitute a known-good PCM (see page
11-7), then go to step 24. If the PCM was substituted,
go to step 1. If the HDS indicates NOT COMPLETED,
go to step 24.

Is DT C P0986 indicated?

Does the HDS indicate PASSED?

Is DT C P0986 indicated?

Does the HDS indicate PASSED?

08/08/21 14:45:28 61SNR030_140_0193

ＳＮＲ９ＡＡ１Ｋ７７１０００９１６Ｃ０ＦＡＡＴ００

ＳＮＲ９ＡＡ１Ｋ７７１０００９１７１７ＦＡＡＴ００

−

DTC P16C0:

DTC P1717:

YES

14-192

Automatic Transmission

PCM A/T Control System

Incomplete Update

Open in Transmission Range

Switch ATPRVS Switch Circuit

NOTE:

• Before you troubleshoot, record all freeze data and

any on-board snapshot with the HDS, and review
General Troubleshooting Information (see page 14-3).

• This code is indicated when PCM updating is

incomplete.

• Do not turn the ignition switch to LOCK (0) or

ACCESSORY (I) while updating the PCM. If you turn
the ignition switch to LOCK (0) or ACCESSORY (I)
before completion, the PCM can be damage.

1. Update the PCM (see page 11-227).

2. Check for Temporary DTCs or DTCs with the HDS.

Replace the PCM (see page 11-228).

PCM updating is complete.

NOTE:

• Before you troubleshoot, record all freeze data and

any on-board snapshot with the HDS, and review
General Troubleshooting Information (see page 14-3).

• This code is caused by an electrical circuit problem

and cannot be caused by a mechanical problem in the
transmission.

1. Turn the ignition switch to ON (II).

2. Shift to R, and check the A/T R Switch in the Data

List with the HDS.

Go to step 3.

Check for proper transmission range switch

installation (see page 14-267), adjust the shift cable
(see page 14-259), then recheck. If transmission
range switch and shift cable are OK, go to step 4.

3. Check the Reverse Switch (ATPRVS) in the Data List

with the HDS.

Intermittent failure, the system is OK at this

time.

Go to step 4.

4. Turn the ignition switch to LOCK (0).

5. Disconnect the transmission range switch

connector.

Is DT C P16C0 indicated?

Is the A/ T R SW IT CH ON?

Is the Rever se Switch ( AT PRV S) ON?

08/08/21 14:45:28 61SNR030_140_0194

Content .. 275 276 277 278 ..